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The use of radioactive tracers in lubrication and wear research; Emploi des indicateurs radioactifs dans les recherches sur la lubrification et l'usure; Ispol'zovanie mechenykh atomov pri issledovanii voprosov smazki i iznosa; Utilizacion de los indicadores radiactivos en los estudios sobre la lubricacion y el desgaste

Conference:

Abstract

In many lubrication and wear problems, processes occurring on a very small scale have to be studied and the great sensitivity of radioactive tracer methods has been successfully applied. Several examples of such applications are cited from the work of the Lubrication and Wear Division of the National Engineering Laboratory in the United Kingdom. The quantitative relation between metal transfer and boundary friction is studied as a function of sliding velocity, surface roughness and the presence of lubricants. In order to study the distribution of wear, cast iron plugs containing Ir{sup 192} are inserted in the liners of a Diesel engine and the radioactivity present in oil samples is measured. Radioactive iron and iron oxide particles are used to study then role in the wear process. The reactivity of strained metal surface is studied with the aid of C{sup 14}- labelled stearic acid and of S{sup 35} in solution. The reaction rates of gear oil additive are being studied by passing short electric-current pulses through metal wires immersed in solutions of compounds labelled with S{sup 35} and P{sup 32}. The build-up of anti-wear films on the surface of gear teeth is being studied as a function of lead, speed and  More>>
Authors:
Campbell, R B; Grunberg, L; Milne, A A; Wright, K H.R. [1] 
  1. Lubrication, Wear and Mechanical Engineering Aspects of Corrosion Division, National Engineering Laboratory, Thorntonhall, Glasgow (United Kingdom)
Publication Date:
Jan 15, 1962
Product Type:
Conference
Resource Relation:
Conference: Conference on the Use of Radioisotopes in the Physical Sciences and Industry, Copenhagen (Denmark), 6-17 Sep 1960; Other Information: 9 figs, 5 refs; Related Information: In: Radioisotopes in the Physical Sciences and Industry. Proceedings of the Conference on the Use of Radioisotopes in the Physical Sciences and Industry. V. 1| 556 p.
Subject:
36 MATERIALS SCIENCE; CALIBRATION; CARBON 14; CAST IRON; DIESEL ENGINES; DISTRIBUTION; ELECTRIC CURRENTS; FILMS; IRIDIUM 192; IRON; IRON OXIDES; LUBRICANTS; LUBRICATION; OCTADECANOIC ACID; OILS; PHOSPHORUS 32; REACTION KINETICS; SOLUTIONS; SULFUR 35; SURFACES
OSTI ID:
22025640
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); United Nations Educational, Scientific and Cultural Organization, Paris (France)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12N1619112933
Submitting Site:
INIS
Size:
page(s) 355-368
Announcement Date:
Jan 16, 2013

Conference:

Citation Formats

Campbell, R B, Grunberg, L, Milne, A A, and Wright, K H.R. The use of radioactive tracers in lubrication and wear research; Emploi des indicateurs radioactifs dans les recherches sur la lubrification et l'usure; Ispol'zovanie mechenykh atomov pri issledovanii voprosov smazki i iznosa; Utilizacion de los indicadores radiactivos en los estudios sobre la lubricacion y el desgaste. IAEA: N. p., 1962. Web.
Campbell, R B, Grunberg, L, Milne, A A, & Wright, K H.R. The use of radioactive tracers in lubrication and wear research; Emploi des indicateurs radioactifs dans les recherches sur la lubrification et l'usure; Ispol'zovanie mechenykh atomov pri issledovanii voprosov smazki i iznosa; Utilizacion de los indicadores radiactivos en los estudios sobre la lubricacion y el desgaste. IAEA.
Campbell, R B, Grunberg, L, Milne, A A, and Wright, K H.R. 1962. "The use of radioactive tracers in lubrication and wear research; Emploi des indicateurs radioactifs dans les recherches sur la lubrification et l'usure; Ispol'zovanie mechenykh atomov pri issledovanii voprosov smazki i iznosa; Utilizacion de los indicadores radiactivos en los estudios sobre la lubricacion y el desgaste." IAEA.
@misc{etde_22025640,
title = {The use of radioactive tracers in lubrication and wear research; Emploi des indicateurs radioactifs dans les recherches sur la lubrification et l'usure; Ispol'zovanie mechenykh atomov pri issledovanii voprosov smazki i iznosa; Utilizacion de los indicadores radiactivos en los estudios sobre la lubricacion y el desgaste}
author = {Campbell, R B, Grunberg, L, Milne, A A, and Wright, K H.R.}
abstractNote = {In many lubrication and wear problems, processes occurring on a very small scale have to be studied and the great sensitivity of radioactive tracer methods has been successfully applied. Several examples of such applications are cited from the work of the Lubrication and Wear Division of the National Engineering Laboratory in the United Kingdom. The quantitative relation between metal transfer and boundary friction is studied as a function of sliding velocity, surface roughness and the presence of lubricants. In order to study the distribution of wear, cast iron plugs containing Ir{sup 192} are inserted in the liners of a Diesel engine and the radioactivity present in oil samples is measured. Radioactive iron and iron oxide particles are used to study then role in the wear process. The reactivity of strained metal surface is studied with the aid of C{sup 14}- labelled stearic acid and of S{sup 35} in solution. The reaction rates of gear oil additive are being studied by passing short electric-current pulses through metal wires immersed in solutions of compounds labelled with S{sup 35} and P{sup 32}. The build-up of anti-wear films on the surface of gear teeth is being studied as a function of lead, speed and running time. A problem encountered in many of these applications is the conversion of the measured activity into absolute quantities of materials present in surface films or in wear debris. Calibration methods have been developed for this purpose. (author) [French] Pour nombre de problemes relatifs a la lubrification et a l'usure, ou l'on doit etudier des processus se produisant a tres petite echelle, la methode des indicateurs radioactifs, qui presente l'avantage d'etre tres sensible, a donne de bons resultats. Le memoire cite plusieurs exemples d'applications de ce genre, tires des travaux de la Division de la lubrification et de l'usure du National Engineering Laboratory (Royaume-Uni). La relation quantitative entre le transfert de metal et la friction de deux surfaces est etudiee en fonction de la vitesse de deplacement, de la rugosite des surfaces en contact et de la presence de lubrifiants. Pour etudier la repartition de l'usure, on insere des chevilles de fonte contenant de l'Ir{sup 192} dans les chemises d'un moteur-diesel et l'on preleve des echantillons d'huile dont on mesure la radioactivite. On utilise des particules radioactives de fer et d'oxyde de fer pour etudier leur role dans le processus d'usure. La reactibilite de surfaces metalliques qui ont travaille est etudiee a l'aide d'acide stearique marque au C{sup 14} et de S{sup 35} en solution. La vitesse de reaction des produits ajoutes a l'huile d'engrenages est etudiee au moyen de courtes impulsions electriques que l'on envoie dans des fils metalliques immerges dans des solutions de composes marques au S{sup 35} et au P{sup 32}. La constitution de pellicules retardant l'usure a la surface des dents d'engrenages est etudiee en fonction de la pression de friction, de la vitesse et du temps de fonctionnement. Un probleme commun a nombre de ces applications est celui de la conversion de l'activite mesuree en quantites absolues de matieres presentes dans les pellicules de surface ou dans les dechets resultant de l'usure. Des methodes de calibrage ont ete mises au point a cette fin. (author) [Spanish] La solucion de muchos de los problemas de lubricacion y desgaste requiere el estudio de procesos que ocurren en escala muy pequena a los que pueden aplicarse con exito metodos de gran sensibilidad basados en el empleo de indicadores radiactivos. Los autores citan varios ejemplos de estas aplicaciones, realizadas en la Lubrication and Wear Division del National Engineering Laboratory (Reino Unido). La memoria estudia la relacion cuantitativa entre la transferencia de metal y la friccion en las capas limite, en funcion de la velocidad de deslizamiento, de la rugosidad de la superficie y de la presencia de lubricantes. A fin de estudiar la distribucion del desgaste, se insertan en las camisas de un motor diesel varillas de fundicion que contienen iridio-192, y se mide la radiactividad de las muestras de aceite. Se utilizan particulas radiactivas de hierro y de oxido de hierro para estudiar su influencia en los procesos de desgaste. Empleando acido estearico marcado con carbono-14 y azufre-35 en solucion, se investiga la reactividad de las superficies del metal sometido a tensiones. Por otra parte, se esta estudiando la velocidad de reaccion de los aditivos lubricantes de engranajes haciendo pasar impulsos breves de corriente electrica a traves de hilos metalicos sumergidos en soluciones de compuestos marcados con azufre-35 y fosforo-32. Se investiga la formacion de peliculas antidesgaste en la superficie de los dientes de los engranajes en funcion de la carga, de la velocidad y del tiempo de funcionamiento. En muchas de estas aplicaciones se tropieza con la dificultad de tener que calcular las cantidades absolutas de materiales presentes en las peliculas que se forman en la superficie, o en las particulas originadas por el desgaste, a partir de la actividad medida. Con tal objeto se han elaborado metodos de calibracion. (author) [Russian] Vo mnogikh problemakh smazki i iznosa sleduet izuchat' protsessy, vstrechayushchiesya v ochen' malykh masshtabakh. Pri ehtom uspeshno ispol'zovalas' bol'shaya chuvstvitel'nost' indikatornykh metodov. Nekotorye primery podobnogo ispol'zovaniya ehtikh metodov dayutsya iz raboty otdela smazki i amortizatsii Natsional'noj tekhnicheskoj laboratorii Velikobritanii. Kolichestvennoe sootnoshenie mezhdu metallicheskoj peredachej i poverkhnost'yu treniya izuchaetsya kak funktsiya skorosti proskal'zyvaniya nerovnosti poverkhnosti i nalichiya smazochnykh materialov. Dlya togo, chtoby proanalizirovat' raspredelenie iznosa, chugunnye probki, soderzhashchie iridij-192, vstavlyayutsya v prokladki dizelya. Radioaktivnost', imeyushchayasya vo vzyatykh obraztsakh masla, zameryaetsya. Radioaktivnoe zhelezo i chastitsy okisi zheleza ispol'zuyutsya dlya izucheniya ikh roli v protsesse iznosa. Reaktivnost' poverkh- nosti zakalennykh metallov izuchalas' s pomoshch'yu mechennoj uglerodom-14 stearinovoj kisloty i rastvora sery-35. Skorost' reaktsii v primesi masla dlya shesteren analizirovalas' putem propuskaniya korotkikh impul'sov ehlektrotoka po metallicheskim provodam, opushchennym v rastvory soedinenij, mechennykh seroj-35 i fosforom-32. Sozdanie stojkikh k istiraniyu plenok na poverkhnosti zub'ev shesterenok izuchalos' kak funktsiya nagruzki, skorosti i vremeni raboty. Vopros, vstrechayushchijsya vo mnogikh iz vidov ehtogo primeneniya, sostoit v prevrashchenii izmeryaemoj aktivnosti v absolyutnye kolichestva materialov, prisutstvuyushchikh na poverkhnosti plenok ili v produktakh iznosa. Dlya ehtoj zhe tseli ispol'zovalis' metody kalibrovaniya. (author)}
place = {IAEA}
year = {1962}
month = {Jan}
}